The Greek word is ἄπιστος, 'not believing,' and hence an 'unbeliever.' 2 Corinthians 6:15; 1 Timothy 5:8 . The word is translated 'unbeliever' in Luke 12:46; 1 Corinthians 6:6; 1 Corinthians 14:23; 2 Corinthians 6:14; and 'unbelieving' in 1 Corinthians 7:14,15; Titus 1:15; Revelation 21:8 . Thus the scriptural use of the term does not imply the denial of the truth of Christianity, as it is now commonly understood.